body {
    display: flex;
    align-items: center;
    height: 100vh;
    background-color: #f8f9fa;
}

.form-signin {
    max-width: 400px;
}

.form-floating label {
    color: #6c757d;
}

.form-select {
    border-color: #ced4da;
}

.btn-primary {
    background-color: green;
    border-color: green;
}

.btn-primary:hover {
    background-color: darkgreen;
    border-color: darkgreen;
}

.alert {
    margin-bottom: 1rem;
}